


Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
582 FZUS54 KLCH 120510 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1209 AM CDT Sat Jul 12 2025 Coastal waters from the Lower Atchafalaya River LA to High Island TX out 60 nautical miles including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays Seas are provided as a range of the average height of the highest one third of the waves, along with the occasional height of the average highest ten percent of the waves. GMZ400-121800- 1209 AM CDT Sat Jul 12 2025 .Synopsis for Lower Atchafalaya River LA to High Island TX out 60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays... High pressure extending across the northern Gulf will maintain light onshore winds and low seas through late next week. Daily scattered showers and thunderstorms will continue over the coastal waters through Monday with lower rain chances Tuesday through the end of the week as upper level ridging builds across the northern gulf. $$ GMZ430-121800- Sabine Lake- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms this morning, then showers and thunderstorms likely this afternoon. .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Lake waters light chop. Showers and thunderstorms likely. .SUNDAY NIGHT...South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .MONDAY...Southwest winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Lake waters light chop. .TUESDAY...Southwest winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY...West winds around 5 knots, becoming south in the afternoon. Lake waters light chop. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ432-121800- Calcasieu Lake- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers this morning. A chance of thunderstorms. Showers likely this afternoon. .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms. .SUNDAY...South winds 5 to 10 knots. Lake waters light chop. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .MONDAY...Southwest winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .TUESDAY...West winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A chance of showers and thunderstorms. .TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY...West winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-121800- Vermilion and West Cote Blanche Bays- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers this morning. A slight chance of thunderstorms late this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms in the evening. .SUNDAY...South winds around 5 knots. Bay waters smooth. Showers and thunderstorms likely. .SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .MONDAY...Southwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Bay waters smooth. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-121800- Atchafalaya and East Cote Blanche Bays- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. .TONIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms in the evening. .SUNDAY...South winds around 5 knots. Bay waters smooth. Showers and thunderstorms likely. .SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms after midnight. .MONDAY...Southwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...West winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms after midnight. .TUESDAY...West winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...West winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...West winds around 5 knots. Bay waters smooth. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-121800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of thunderstorms. .TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .TUESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. .WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-121800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers. A slight chance of thunderstorms early this morning, then a chance of thunderstorms late this morning and afternoon. .TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .MONDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 6 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...West winds 5 to 10 knots, becoming southwest in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. A chance of showers and thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-121800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: South 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 2 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds and south 1 foot at 6 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...West winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .TUESDAY NIGHT...West winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. .WEDNESDAY...Northwest winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-121800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: South 3 feet at 5 seconds. A chance of thunderstorms. A chance of showers this morning, then showers likely this afternoon. .TONIGHT...South winds around 10 knots. Seas around 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers and thunderstorms. .SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms after midnight. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. .MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .TUESDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. .WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-121800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers and thunderstorms. .TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southwest winds around 5 knots. Seas around 2 feet. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...West winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of showers and thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-121800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1209 AM CDT Sat Jul 12 2025 .TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .MONDAY...Southwest winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...Southwest winds around 5 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: South 2 feet at 6 seconds, becoming south 1 foot at 6 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Northwest winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms, mainly in the morning. .TUESDAY NIGHT...West winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...Northwest winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$